Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: question: Nomeie a região para o formato de cd em 22 de fevereiro de 1984
 ###Tabelas: CREATE TABLE previous_teams (previous_teams_id AUTO_INCREMENT PRIMARY KEY, Team VARCHAR, Location VARCHAR, Home Ground VARCHAR, First year in Qld Cup INT, Last year in Qld Cup INT, Qld Cup Premierships VARCHAR) CREATE TABLE youth_competitions (youth_competitions_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Competition VARCHAR, Location VARCHAR, Home Team VARCHAR, Result VARCHAR, Away Team VARCHAR) CREATE TABLE oldest_living_test_cricketers (oldest_living_test_cricketers_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Country VARCHAR, Date of birth VARCHAR, Debut VARCHAR, Last match VARCHAR, Age as of 1 February 2014 VARCHAR) CREATE TABLE selected_statistics (selected_statistics_id AUTO_INCREMENT PRIMARY KEY, College VARCHAR, 2007 Headcount INT, 2007-2008 credit hours INT, County population 18 yrs+ INT, Penetration in terms of Enrollment per 1000 adults INT, In-county tuition per credit hour (fall 2009) VARCHAR) CREATE TABLE release_history (release_history_id AUTO_INCREMENT PRIMARY KEY, Region VARCHAR, Date VARCHAR, Label VARCHAR, Format VARCHAR, Catalog VARCHAR)  
SELECT Region FROM release_history WHERE Format = cd AND Date = february 22, 1984